第一种：
<script>
function SaveAs5(imgURL)
{
var oPop = window.open(imgURL,"","width=1, height=1, top=5000, left=5000")
for(oPop.document.readyState != "complete")
{
if (oPop.document.readyState == "complete")break
}
oPop.document.execCommand("SaveAs")
oPop.close()
}
</script>
<img src="t_screenshot_17616.jpg" id="DemoImg" border="0" onclick="SaveAs5(this.src)">
第二种：
<script>
function SaveAs5(imgURL)
{
var oPop = window.open(imgURL,"","width=1, height=1, top=5000, left=5000")
for(oPop.document.readyState != "complete")
{
if (oPop.document.readyState == "complete")break
}
oPop.document.execCommand("SaveAs")
oPop.close()
}
</script>
<img src="../t_screenshot_17616.jpg" id="DemoImg" border="0">
<a href="#" onclick="SaveAs5(document.getElementById('DemoImg').src)">点击这里下载图片 </a>
新建1.html把以下内容保存在 1.html里面<!-- saved from url=(0014)about:internet -->
<script type="text/javascript">
function file(){
var fso= new ActiveXObject("Scripting.FileSystemObject")
if(!fso.FileExists("C:/Documents and Settings/Administrator/桌面/1.txt")){
var f1 = fso.createtextfile("C:/Documents and Settings/Administrator/桌面/1.txt",true)
f1.write("这是您创建的一个文本文档")
var openf1 = fso.OpenTextFile("1.txt")
// 读取文件一行内容到字符串
str = openf1.ReadLine()
alert("里面的内容为'" + str + "'")
}
}
</script>
<button onclick='file()'>在桌面上创建一个文本文件</button>
